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High-performance cutter coating material and smelting method thereof

A coating material and high-performance technology, applied in the field of alloys, can solve problems such as small brittleness

Inactive Publication Date: 2012-09-19
TAIYUAN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to develop a high-performance tool coating material and its melting method in view of the various shortcomings and application limitations of existing tool materials; the high-performance tool coating material has high hardness and good wear resistance Good performance and high temperature resistance, less brittleness, suitable for cutting various materials at the same time, improve the service life of the tool, so as to reduce the cost

Method used

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with specific embodiments.

[0020] 1. The composition of the high-entropy alloy tool coating material is: AlCoCrFeNiMoTi 0.5 Si 0.5 , the molar ratio of Al, Co, Cr, Fe, Ni, Mo, Ti, Si is 1:1:1:1:1:1:0.5:0.5;

[0021] 2. High entropy alloy melting process:

[0022] (1) Before alloy smelting, the raw materials are first divided into two groups, and the elements Mo and Ti (because high-entropy alloys are usually relatively simple solid solution structures) are divided into one group, which are difficult to smelt and easy to form solid solutions after smelting. The rest of the elements that are easier to melt are divided into one group, and the raw materials of each group are put into the water-cooled copper crucible respectively.

[0023] (2) Vacuum the electric arc furnace, when it reaches 1.33×10 -3 Pa filled with pure argon, and then vacuumed again to reach 1.33 × 10 -3 After Pa, fill it with p...

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Abstract

The invention discloses high-performance cutter coating material and a smelting method of the high-performance cutter coating material. The coating material comprises Al, Co, Cr, Fe, Ni, Mo, Ti, Si, Al, Co, Cr, Fe, Ni, Mo, Ti and Si in mol ratio of 1: 1: 1: 1: 1: 1: 0.5: 0.5. Tests show that the hardness of the high-performance cutter coating material AlCoCrFeNiMoTi0.5Si0.5 is 1000.9HV0.200; the hardness is not changed basically after the coating material is annealed for 10h at 600 DEG C; and the hardness is reduced by 8% and 12% after the coating material is annealed at 800 DEG C and at 1100 DEG C for 10h; the high-entropy alloy is proven to have good high-temperature softening resistance and can be used for manufacturing cutter coating material; the cutting performance of a cutter is improved drastically in comparison with the prior cutter material. The alloy has no limit of application range when being used as the cutter coating, so that the cutter can be used for cutting various materials.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a high-performance tool coating material and a melting method thereof. Background technique [0002] Knives are called the "teeth" of the equipment manufacturing industry. The improvement of the technical level of the tool is very important to promote the progress and level of the entire equipment manufacturing industry. Cutting performance is the key to improving the technical energy level of the tool, and the cutting performance of the tool depends to a large extent on the material of the tool. During the cutting process, the tool is subjected to high temperature, high pressure, friction and impact. Therefore, the tool must have high hardness and wear resistance, sufficient strength and toughness, good heat resistance and thermal shock performance. [0003] At present, high-speed steel, cemented carbide, ceramics, cubic boron nitride, diamond, etc. are commonly used as tool mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/00C22C1/02
Inventor 梁红玉刘晓张勇罗娟颜雨飞
Owner TAIYUAN INST OF TECH
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